Dell Alienware x16 R1 Service Manual page 93

Table 16. System setup options—Virtualization Support menu
Virtualization
Intel® Virtualization Technology
Enable Intel® Virtualization Technology
(VT)
VT for Direct I/O
Enable Intel® VT for Direct I/O
DMA Protection
Enable Pre-Boot DMA Support
able OS Kernel DMA Support
Table 17. System setup options—Performance menu
Performance
Multi-Core Support
Active Cores
Intel SpeedStep
Enable Intel® SpeedStep Technology
C-States Control
Enable C-State Control
Enable Adaptive C-States for Discrete
Graphics
Intel Turbo Boost Technology
Enable Intel Turbo Boost Technology
Intel Hyper-Threading Technology
Enable Intel Hyper-Threading Technology
TCC Activation Offset
TCC Activation Offset
Enables the computer to run a virtual machine monitor (VMM).
Default: ON
Enables the computer to perform Virtualization Technology for Direct I/O (VT-d).
VT-d is an Intel method that provides virtualization for memory map I/O.
Default: ON
Enables Pre-boot DMA protection for both Internal and External ports.
Enables Kernel DMA protection for both Internal and External ports.
Default: ON
Changes the number of CPU cores available to the operating system. The default
value is set to the maximum number of cores.
Default: All
Enables or disables the Intel® SpeedStep Technology to dynamically adjust
processor voltage and core frequency, decreasing average power consumption
and heat production.
Default: ON
Enables or disables the CPU's ability to enter and exit low-power states.
Default: ON
Allows to dynamically detect high usage of discrete graphics and adjust system
parameters for higher performance during that time period.
Default: ON
Enabled or disabled the Intel® TurboBoost mode of the processor. If enabled,
the Intel® TurboBoost driver increases the performance of the CPU or graphics
processor.
Default: ON
Enabled or disabled the Intel® Hyper-Threading mode of the processor. If
enabled, the Intel® Hyper-Threading increases the efficiency of the processor
resources when multiple threads run on each core.
Default: ON
Enables user to adjust CPU's Tcc offset to moderate the performance of the CPU.
Default: 00
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